... Dynamo flashlight GB1010 hand-pressing flashlight power supply: 2pcs button cell inside, generating electricity by hand pressi Dynamo flashlight GB1010 ... dynamo LED flashlight, LED torch.2. power supply: 2pcs button cell inside, generating electricity by hand pressing,3. 2 or 3 ... on by on/off switch or depress button, long lifespan LED.9. power: button battery (included)10. mini, fashion and popular ...